A Simple Instruction of PCI Express

can i use pcie 3 0 in 2 0 slot   Dan candy bars slot

your i5-3470 works on PCIe natively, Optiplex 7010 has only one slot bound to CPU PCIe, others are linked via chipset

You can only work at the highest PCIe revision supported by both sides If you have a PCIe 2 card in a PCIe 3 slot then it will work at PCIe 2 For instance, a PCIe SSD can be inserted into a PCIe slot of a motherboard, but you will only get PCIe performance Likewise, a

wild cats slot Yes, they will work PCIe is just like USB was It's just a marketing thing to say We have something new, but you really won't see So it looks like PCIe is supported natively in Linux for this motherboard, since the transfer rates show 8GTs which corresponds to PCIe